nissan Workshop Repair Guides

Nissan and Datsun Workshop Service and Repair Manuals

Air Cleaner Housing > < Idle Speed/Ignition Timing/Idle Mixture Ratio Adjustment|Page 1777
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3. Check that downstream of throttle valve is free from air leakage.
4. Adjust closed throttle position switch and reset memory. (Refer to Basic Inspection.)  See: Powertrain Management/Computers and Control

Systems/Testing and Inspection/Initial Inspection and Diagnostic Overview/Initial Inspection (Basic Inspection)

5. When the above four items check out OK, engine component parts and their installation condition are questionable. Check and eliminate the cause

of the problem. It is useful to perform "TROUBLE DIAGNOSIS - SPECIFICATION VALVE".

6. If any of the following conditions occur after the engine has started, eliminate the cause of the problem and perform "Idle air volume learning" all

over again:
-

Engine stalls.

-

Erroneous idle.

-

Blown fuses related to the IACV-AAC valve system.

Air Cleaner Housing > < Idle Speed/Ignition Timing/Idle Mixture Ratio Adjustment|Page 1777